Relocating baseboard heater (forced hot water)

I need to relocate my forced hot water baseboard heater to another area of my living room. The area is fairly close by, just need enough space to put in a sliding glass door. How difficult is this for a do it yourself project and what are some of the steps/items etc. that I need in order to do this successfully?

"doesn't seem like it's anymore difficult than other plumbing projects". Now that is what scares me more than anything else, and you have hundred plus posts Are you out here as opposed to the electrical sites because of plumbing's simplicity??